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多选2.对于气动控制仪表,叙述正确的是( )。

A、动力源为0.14MPa

B、动力源为0.14KPa

C、动力源为220V,50Hz交流电

D、动力源为24V直流电

E、各单元之间的传输信号为0.02~ 0.1MPa

时间：2021-07-17 23:03 关键词：化工仪表及自动化多选题

答案解析

AE

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